【正文】 .......................................................................................................................................46 噴 射 砼 施工 .............................................................................................................................................46 錨 桿施工 .................................................................................................................................................48 鋼 筋網安 設 .............................................................................................................................................49 鋼 架施工 .................................................................................................................................................49 裝碴運輸 ........................................................................................................................................................50 隧道施工通風、排水 ......................................................................................................................................50 反坡施工方案 .................................................................................................................................................51 設備選型配套 ........ 51 、水泵配置 ......... 52 管路 ..... 52 臨時集水坑 ......... 52 永久性泵站 ......... 52 排水供電 52 6．、應急措施 ............. 53 、污水處理 ...... 53 洞內供電、供風和供水布置方案 ..................................................................................................................54 防排水施工 ....................................................................................................................................................56二連浩特至廣州國家高速公路湖南省安化（梅城）至邵陽公路一標 施工方案中鐵五局集團 3 二次襯砌 ......................................................................................................................................................58 工 藝 流程 ...............................................................................................................................................59 仰拱及 鋪 底施工 ...................................................................................................................................59 洞身 襯 砌施工 .......................................................................................................................................60 洞身 襯 砌 鋼 筋保 護層 措施 ...................................................................................................................62 隧道裝 飾 工程施工 ...............................................................................................................................62 水溝、 電纜 溝及路 緣邊 溝施工 ............................................................................................................64 隧道路面施工 .......................................................................................................................................64 二 襯 回填注 漿 施工 ...............................................................................................................................67 豎井施工方法 ..............................................................................................................................................67 車行及人行橫洞工程 ..................................................................................................................................67 緊急停車帶及輔助坑道施工 .......................................................................................................................67 隧道施工地質工作（超前地質預報） ..........................................................................................................68 隧道施工控制測量 ......................................................................................................................................71 施工監(jiān)控量測 ...............................................................................................................................................74 不良地質地段施工 .......................................................................................................................................81 淺埋堆 積 體段施工 ...............................................................................................................................81 淺埋段地層注漿加固 ...... 83 淺埋段雙下側導坑施工 .......... 83 淺埋段洞身施工 ...... 83 淺埋段施工工藝流程 ...... 84 突水突泥段施工 ...................................................................................................................................84 巖溶地段施工 .......................................................................................................................................867 工期保證體系及保證措施 .......... 88 工期保證體系 .................................................................................................................................................88 工期保證措施 .................................................................................................................................................88 施工進度保證措施 .........................................................................................................................................90 隧道淺埋段的進度保證措施 .........